final byte[] challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);
                ntlm = NtlmSsp.authenticate(getTransportContext(), request, response, challenge);
                if (ntlm == null) {
                    return;
                }
            } else {
                final String auth = new String(Base64.decode(msg.substring(6)), "US-ASCII");

        if (log.isDebugEnabled()) {
            log.debug("Opening file " + u);
        }
        return new SmbFile(u, getTransportContext());
    }

    /**
     * @return
     */
    private CIFSContext getTransportContext() {
        if (this.transportContext == null) {
            this.transportContext = SingletonContext.getInstance();
        }
        return this.transportContext;

        }
        if (params.length() > 0) {
            url.append("?").append(params.substring(1));
        }

        return url.toString();
    }

    @Override
    public CIFSContext getTransportContext() {
        return this.pipe.getContext();
    }

    @Override
    public String getServer() {
        return this.pipe.getLocator().getServer();
    }

    @Override